Jar-cap.



E. D. SCHMITT.

JAR CAP. APPLICATION man mm. I4. 1915.

Patented Dec. 7, 1915.

2 SHEETS S HEET I.

E. D. SCHMITT.

JAR-CAP. MPPLIQATLQN. man IAN. m. 1915.

Patented Dec. 7, 1915;

2 SHEETS-SHEET 2.

THE PURE FOOD 0F MYLhND.

EDWARD D. HOHMITT, OI BALTIMORE, MARYLAND, AHfiIG-NO'R TO PBOOEQB COMPANY, OF BALTIMORE,MARYLAND, A OQBPORATION J Am- 6hr.

Specification of Letters Patent. Patented Deon; W, 191%..

' Application filed January 14, 1915;" Serial No. 3,147.

admirably adapted for milk bottles, since it is securely locked to the bottle, and any eifortto remove the cap for the purpose of To all whom it may concern: A

Be it known that I, EDWARD D. SCHMITT, a citizen of the United States, residing at Baltimore, State of Maryland, have inventadulteration of the milk will be readily deed certain new and useful Improvements in tected, since it is necessary to tear the rim 0 J ar-Caps, of which the following is a specibefore the cap can be removed.

fication. n the drawings illustrating the inven- This invention relates to improvements in tion, Figure 1 is a perspective view of the jar caps. cap secured to a milk jar; Fig. 2 is a similar The object of the invention is to provide a view looking at the cap from another direc- 5 cap, which although made of comparatively heavy tin, may be readily removed by hand.

In my Patent Number 1,075,125, dated October 7, 1913, I have shown and described a cap of hard metal, especially adapted for hermetically sealing jars, in which the contents are subjected to considerable pressure and in that case, a securing rim is provided having an inclined inner Wall, to the bottom of which is attached, an opening lever, the inner wall serving as a fulcrum forthe opening lever inthe opening operation, whereby It is desirable to use for this closure, a tin the metal of the closing rim between the of comparatively heavy weight, so that the notches, or cut out portions, may be twisted sk' apart. In the present case, I dispense with- "firml'y' locked under the I j l the inclined inner wall and secure the open locking shoulder on the bottle. 1 Tin of the ing lever to the top of the securing rim, but desired weight cannot be, torn by a force in order that the metal ma be easlly broken less thanthat that could bepractically apor twisted apart between t e notches, I proplied in opening the closure. Therefore, I vide stifi'ening means on the top of the-rim, have devised a construction wherein the adjacent to the points where the rupture of openingv lever will bear such structural relathe metal takes place. By this construction, ion to the rim as to enable the metal of the I am enabled to provide a cap suitable for rim, between the notches, to be twistedapart. milk bottles and the like, where a fiat paper 1s is accomplished by making the lever or other disk is employed, which cap may andthat part of the rim with which the be readily removed by hand.

opening lever is integral, stiffen than the The invention consists in the main, of the rest of the rim, so as to prevent it and the provision of a closing member, such as a integral part of the mm, from bending in d1sk of paper or tin, paper being preferable t he opening operation. in instances where the cap-1s used for milk Referring to the drawings, the numeral 1 bottles, in combination with a securing rimdesignates a milk bottle of ordinary conprovided with aflat upper surface, and a struction, provided with an external bead 2 skirt or flange adapted to be bent or crimped and a seat 3, the seat'3, obviously being for into locking engagement with a locking surthe reception of the ordinary paper d1sk, face on the outside of the jar, adjacent to commonly used in closing milk bottles. its mouth, the rim being provided with The cap about to be described is one notches between which the metal is adapted that may be used with the ordinary bottle to be twisted, and also with stiffening means as shown. The cap consists of a closin for the rim between the notches, there being disk 4, preferably of parafiin paper, although also a stifi'ened opening lever attached to the rim adjacent to the notched and stiffened portion of the rim, so that the metal between the notches will be rendered sufiiciently stifl to permit a twisting tear of the metal between the notches. A cap of this character cured to the bottle.

' tional view, very much enlarged, of one side of the cap, and lip of the bottle, to show the engagement between the more clearly inner edge of the rim with the closing disk.

it should be understood at the outset, that where the cap is used, asit may be, for closing other receptacles than milk bottles; the may be replaced by a disk of suitable material. 5 designates the securingrim closing disk 4 metal or other The numeral having a flan e 6 adapted to be bent or crimpedinto under surface of the ocking engagement with the capping machine.) Integral with the inner edge of the rimfi, which is formedwith a flatitop or upper surface 7 is an opening I lever 8 prov1ded centrally witha stiffening I rib'9.2

" -The'num ening ribs arrange'd'obliquely and extendral 10 designates two other stifi ing partly on to the lever and partly across the surface .701 the rim. .Adjacent tothese a ribs 10 and-on the outside of the ribs are two elongated notchesll, with their ends converging toward each other. and toward theedge-of the flat part 7jof the cap .or extend:

ing in the direction in which themetal-will 1 naturally .tearLm, f I

= In the flange 6, I arrange twoother notches 12,;eXtending for almost the entirev depth of the'fiange but leaving some metal between the upper endsiof the notches and 'theouter ends of the notches 10, and also some metal betweenthe lower ends of said notches 12 and the bottom edge of; the

I 7 Itis -deSirabIe to make the capa concrete 4 5 thing, hat' 's disk aresecured'together sufficiently to permit handling withoutseparation. To aid in, holding the disk the cap, Iturn down the inner edge of'the-Irim to'form an annular l flange 13' which; in the'fmanufactureof the cap, is embeddediinto'the disk. I This flange to say, the rim and closing serves the twofold-lpil'rpose of assistingin holding the diskin thev rim, as well as to prevent lateral movement of the inner cir- {move the cap, the by the thumb and forefinger and raised,-first as shown in Fig. 3' of the drawing. The lever being stiffened, does not bend-cross, wise, which would defeat the purpose of the structure, but remains straight, as shown' c'umferential edge of the disk' in'applying pressure in putting on the seal, that isto say,-

prevent slipping-inward. of the disk.

In'operation, when" it :is desired to' reopening lever is engaged in Fig. aunt tothe ribs 9,and10. "This upi to ward movement first brings about 'a twist at the" points a twisting the metal at. these. -'points, into the notches 11'. A further movementjof the lever twists the metal apart, at the points 6- bringing about the condition of the capshown'in'Fig. 4. Afurther move5 ment of-the; lever-twists" the metal of the" flange ot the points 0. thus, completely removing a section of the rim. For a temit'is obvious thatthe rim' porary closure, and disk may b'epressed back on the jar, for keeping" fresh, the unused portion of the contents-1 r j While I have shown the cap applied to 'a' j ar or receptacle having a large mouth such as milk jars, it will, of course, be understood that it'would be equally well adapted" as a bead 2, by a suitable closure for bottles or small mouthed recepwith the flat portion of the rim, means for stiffening the opening lever, and also the rim, adjacent to the base of the lever, so that by-the lifting of the lever a part of the upper surface of the rim may be twisted oil to unlock the seal.

2, A jar cap comprising a closing member,

' and a rim formed with an upper portion adapted to extend over the closing member, and a. depending flange adapted to make locking contact with the locking surface on the exterior of a jar, the rim being provided at one side and in its upper portion, with notches and also having notches in its flange, an opemng lever integral with the rim at a point adjacent to the notches, means for stiffening the opening. lever and also the rim adjacent to said notches, so that by the raising of the'lever, the material between the said notches and the inner edge of the rim, adjacentgto the base of the lever, willbe twisted-apart totear. out a, portion of the rim, for unlocking the seal.&,

3. Ajarcapcomprising' a closing member and a securing rim-formed with an upper portion adapted to overlap the closing memher, and a fiangeorskirt adapted to make locking engagement-'with the locking surface onthe exterior of a jar, the rim being provided atone side upon its top and flange :with notches, the outer ends of the notches onthe rimterminating adjacent to the upper endsof the notches on the flange, an opening lever integral with the rim adjacent T to the inner ends of the notches in the upper part ofsa-id' rim, stiffeningribs adjacent to the'notches inthe upper portion of the rim,

and'extending; partly on tojthe stifiening f I lever and partly onto the rim, whereby the lever and rim are stiffened adjacent to the notches, so that, by the raising of the lever,

the material between the inner edge of said rim and the inner ends of the upper notches, 1

and the material between the outer ends of said notches and the upper ends of the notches on the flange, will be twisted out to unlock the' seal. z

-4. .A jarct Qompris closing member C v and asecuring rim formed with an.upper portion adapted to overlap the closing memher, and a flange for locking engagement.

with a locking surface on the exterior of a jar, the securing rimbein'g provided at one side in its. upper surface with convergingv notches, and in its flange with notches whose upper ends terminate adjacent to the outer ends of the first mentioned notches, an opening lever integral with the inner edge of the overlapping portion, stiffening ribs between the notches in the upper portion of the rim and extending partly on to the upper portion of the rim and partly on to the opening lever, whereby, by the raising of the lever, the material between the inner edge of said rim and the inner ends of the upper notches, and the material between the outer ends of said notches, and the upper ends of the notches on the flange will be twisted out to unlock the seal.

5..In combination with a jar having a locking shoulder on the exterior surface of the neck thereofla jar cap having a closin -member resting upon the lip of the jar, an

a securing rim having a flat upper portion overlapping the clos ng member and a flange adapted to be forced into locking conping portion,

tact with the shoulder on the jar, the securing rim being provided in its overlap and also in its flange, with notches, an openingdever integral with the inner edge of the flat portion of therim, adjacent to said notches, extending partly on to the openin and partly on to the flat portion of te r'ini adjacent to the upper notches, whereby, by the raising of the lever, the material between the inner edge of the said rim, and the inner ends of the upper notches, and the material between the outer ends of said notches and the upper ends of the notches on the flange, will be twisted out to unlock the seal.

In testimony whereof I afiix my signature in presence of two witnesses.

' EDWARD D. SCHMITT. Witnesses:

FRANK G. BRERnToN, Lrnwooo B. James.

and stiffening ribe a lever 

